MONOECIA. TRIANDRIA. 97 



C. STiPATA. Sclno. Spikeoblong, compound, aggregate; fruit oblong-lanceolate, acuminate, spreading. 



Sijnon. C. viilpinoidea. jMx- 



Fl. Latter end of April. Fr. mat. Latter end of June. 



Hub. Swamps; and moist, low grounds: frequent. H to 3 feet high: spikelets 10 to 20. 



C. MULTiFLORA. Scliio. Spike oblong, dccompound ; spikelets conglomerate, ovate-oblong, bracteate. 



Fl. Beginning of May. Fr. mat. Middle of July. 



Hab. Swamps; and low grounds: common. 1 to 2 feet high: spikelets numerous, in clusters. 



1 1 Female floivers at summit. 



C. scoPARiA. Schio. Spikelets ovate, sessile, aggregate; fruit ovate-lanceolate, marginate- 



Synon. C leporina. Mx. 



Fl. Latter end of May. Fr. mat. Latter end of July. 



JIab. Swamps; and wet meadows: common. 1 to 2 feet high: spikelets 5 to 7, tawney when mature. 



C. FESTUCACEA. Scliw. Spikelets obovate, sub-approximate ; fruit roundish-ovate, rostrate, alate. 

 Fl. Latter end of May. Fr. mat. Latter end of July. 



Hab. Low grounds; woodlands, &c. frequent. About 2 feet high: spikelets 5 to S, greenish. 

 Obs- This species bears considerable resemblance to the preceding. 



§2. Spikes, some only androgynol-s. 



Terminal spike only androgynous- Stigmas 3. 



C. viREScENS. Schti". Spikelets oblong, erect; terminal one male below, pedunculate; fruit ovate, obtuse. 



Fl. Latter end of May. -F>- ^nat. Beginning of August. 



Hal. Killy woodlands: barrens, &c. frequent. 1 to 2 feet high: spikelets 3, rarely 4, greenish. 



C. hirsuta. Schiv. Spikelets ovate-oblong; terminal one on a short peduncle; fruit roundish-ovate. 



Fl. Latter end of May. -F''-- mat. Latter end of July. 



Hab- Low grounds; woodlands: common. 12 to 18 inches high: spikelets mostly 3. 



Obs. This approaches the preceding very nearly, and may readily be confounded with it. 

 C. DIGITALIS. Schiv. Spikelets linear, slender, distant, pedunculate; fruit oblong, sub-triquetrous. 

 Fl. Latter end of May. ^'-- '««^- Latter end of July. 



Hab. AVoodlands: Bath; Patton's, &c. frequent. 12 to 18 inches high: spikelets mostly 4, rarely 5. 



§3. Spikes, Male and Female distinct. 

 a. Male spike mostly solitary. Stigmas 3. t Female spikes sessile; or the peduncles inclosed- 

 C. VARTA. Schio. Female spikelets ovate, subapproximate, few-flowered, sessile; male oblong, subsessile. 

 Fl. Middle of April. ^>- mat. Middle of June. 



Hab. Dry, stony banks; woodlands, &c. frequent. 5to 8 inches high: female spikelets about 3. 



Obs. I'have specimens much resembling this, with long, creeping roots, which Mr Schweinitz marked 

 C stolonifera. Perhaps they are not specifically distinct; as Dr. Muhlenberg says of this, ' radtx repens. 

 I think it quite probable we have also C. marginata, here; but I do not find any, m my collection, which 

 exactly suit the description. 



C puBEscENs. Scktu. Female spikekts oblong, lowest on a short peduncle; culm and leaves pubescent. 

 J'/. Beginning of May. i-^r. maf. Middle of July. 



Hab. Woodlands: forks of Brandy wine: frequent. 12 to 18 inches high: female spikelets about 3. 

 C. TENTACULATA. Schw. Female spikes ovate-cylindric, sessile; fruit ovate, ventricose, long-beaked. 

 Synon. C rostrata. Mx. 



Fl. Latter end of xMay. Fr. mat. Beginning of August. 



Hab. Swamps; and wet places; very common. 12 to IS inches high: female spikes 2, or 3. 

 Obs. This is perhaps our most common species: the whole plant yellowfsh green. 



C. LTJPULiNA. Schto. Female spikes ovate-oblong, approximate; fruit ovate, ventricose, long-beaked. 

 Fl. Middle of June. -f>- mat. Latter end of August. ^ 



Hab. Wet, low grounds; Jos TBylovV; Brandywir.e; frequent. 2 to 3 feet high; female mxes 2 to 5. 



O 



